If you are seeing a yellow exclamation mark next to in your Windows Device Manager, you are not alone. This specific hardware ID corresponds to the Trusted Platform Module (TPM) 2.0 , a critical security component required by modern operating systems like Windows 11.
Look for entries labeled "Security", "Trusted Platform Module", or "Microsoft - Hardware". Check the box and click . Method 3: Manual Installation via Device Manager -NEW- Acpi Msft0101 Driver 77 2021
If you are a Linux user and see errors such as tpm_crb MSFT0101:00: [Firmware Bug] or failed to claim resource 1: [mem 0xfed40000-0xfed40fff] during boot, the simplest solution is to disable the TPM in your BIOS. Most ACPI implementations are slightly off-spec, and if there is no actual functional problem, you can safely ignore these errors. Disabling the TPM prevents the driver from loading and stops the errors from appearing. If you are seeing a yellow exclamation mark
: Improved credential storage and key management for data encryption. Windows 11 Compatibility Check the box and click
: In most cases, Windows 10 and 11 will automatically download this driver as part of optional or security updates. Manufacturer Support
When searching for terms like , users are typically dealing with Device Manager errors, looking for the latest compatible driver package, or attempting to upgrade their operating system to Windows 11, which strictly requires a functioning TPM 2.0 chip. What is the ACPI MSFT0101 Device?
: Ensuring stable TPM 2.0 support, which is a hard requirement for the Windows 11 operating system.